tatolab-webrtc

WHIP publish and WHEP play for Tatolab streams, as an extension wheel: Rust inside, two ordinary @node classes as the binding.

New to Tatolab? Install the Tatolab app first. This package adds two nodes to a stream project; the Tatolab runtime, which comes with the app, is what runs them. See Install Tatolab and the Quickstart.

In a stream project:

uv add tatolab-webrtc

It installs from PyPI with the tatolab-stream package it depends on. Once it is installed, the node catalog lists both nodes under the stream's installed section, before a graph names one.

from tatolab.webrtc import WhepPlayer, WhipPublisher

Both read and write media frames — hang's legacy container, a QUIC varint timestamp in microseconds and then the Annex-B access unit or Opus packet — with a keyframe opening a group. WhipPublisher takes one fan-in input, tracks — each inbound link becomes one RTP track, video or audio by the codec its upstream port's catalog entry names. WhepPlayer writes encoded_video and encoded_audio, and states each port's catalog entry — the codec string, the coded extent, the channel count and the OpusHead — from the stream itself.

Both sit on the encoded side of the codec blocks: H264Encoder / OpusEncoder upstream of the publisher, H264Decoder / OpusDecoder downstream of the player.

See WebRTC (WHIP and WHEP) for full examples and how a session behaves.